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Order here: https://burgertuning.com/collections...9-jb4-for-audi
THIS PART IS LEGAL FOR USE ONLY IN COMPETITION RACING VEHICLES AS DEFINED UNDER CALIFORNIA LAW, AND IS NOT LEGAL FOR USE IN ANY OTHER MOTOR VEHICLE. California law defines a "racing vehicle" as "a competition vehicle not used on public highways." (Calif. Health & Safety Code 39048) This part may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event. Competition-only motor vehicles may not be driven to a racing event on a public highway and must be transported on a trailer or other carrier. USE OF THIS PART IN ANY OTHER VEHICLE MAY SUBJECT YOU TO FINES AND PENALTIES FOR VIOLATION OF FEDERAL AND/OR STATE LAW, WILL VOID YOUR WARRANTY FROM BURGER MOTORSPORTS, INC, AND CAN VOID YOUR VEHICLE'S WARRANTY. It is your responsibility to comply with all applicable federal and state laws relating to use of this part, and Burger Motorsports, Inc hereby disclaims any liability resulting from the failure to use this part in compliance with all applicable federal and state laws.
We'll use this thread for our upcoming Audi RS3 & TTRS JB4 SENT BETA updates, map guides, firmware, and discussion!
Install Guide here: https://www.jb4tuned.com/instruction...nstalguide.pdf
Optional map changing, datalogging and updates are done using the BMS data cable or JB4 Mobile REV3 bluetooth kit.
JB4 Mobile Smart Phone wireless connection directions Click here
BMS data cable hard wired directions and software Click here
Firmware:
Download using the new internal firmware database within JB4 Mobile or externally by clicking this link.
Map guide as of v4 firmware:
Map0: Stock tuning, disable JB4
Map1: (default map) 2psi peak over stock
Map2: 3psi peak over stock
Map3: 4psi peak over stock
Map4: 5psi peak over stock
map5: 7psi peak over stock
Map6: Custom tuning map, see notes below
Map7: Integrated WMI (water/meth) map, progressive control with boost increased as a function of fluid flow up to the user defined WMI additive.
Map8: Valet/Low Boost/Safety map. Runs 25% less boost than stock.
Dragy results:
10.8s all stock on JB4+E30: N54Tech.com - International Turbo Racing Discussion - View Single Post - JB4 for 2018+ AUDI RS3 TTRS
Testing JB4 on top of a flash map: N54Tech.com - International Turbo Racing Discussion - View Single Post - JB4 for 2018+ AUDI RS3 TTRS
Firmware:
JB4_AUDI_TTRS_5:
1) Adjusted map5 to target up to 7.5psi over stock, for those running E30 or unleaded race gas who want to push things a bit. Results in around 22psi in most situations.
2) Adjusted shift boost reduction logic to further reduce boost spikes during shifts. Default setting is shift reduction = 50. A higher value will reduce boost more during shifts and a lower value less.
3) Minor adjustments to boost ramp in to improve operation under boost limiting/loss of traction situations.
4) Added support for low fuel pressure hardwire connection to monitor and rescale, allowing some fuel trim reduction in heavy E85 mixtures. Requires harness addition so is just under testing for specific cars for now.
JB4_AUDI_TTRS_4_T3:
1) Various minor map and tuning revisions.
JB4_AUDI_TTRS_3:
1) Revised boost targets per map
2) Added direct boost control logic allowing dramatically more boost than is possible previously. Enabling this unique feature requires purchasing the optional BCM module.
3) Revised logging channels to include high fuel pressure on a scale of 0-50 = 0-3000psi.
4) Revised logging channels to add road speed
5) Added in over boost and lean-run JB4 safety systems. If boost exceeds user adjustable "boost safety" setting for more than 1 second the JB4 will switch to map0 (disabled). If AFR goes leaner than 15:1 at full throttle for more than 1 second the JB4 will switch to map0 (disabled). More advanced user adjustable safety systems including the ability to failsafe to less boost than stock (for flashed cars) is under development.
Options Settings as of v11 firmware:
Bit0: Enable o2 sensor control if equipped (currently under development)
Bit4: Turn on to disable JB4 passive safety systems (over boost safety, lean run safety)
Bit5: Turn on to disable extended Audi logging channels (knock 2-5, dme bt, ecu_psi, fp_h, gear). Disabling these channels doubles the sampling speed of the primary channels.
Map6:
Map6 is used to customize a boost profile and can be used several ways. The value entered under RPM1500 determines how map6 behaves.
RPM1500 = 0: Map6 adds as a "reduction" map reducing the boost target by the number of PSI entered at each RPM. Popular for those running aggressive flash maps who want to reduce boost 1-3psi for longevity.
RPM1500 greater than 0psi, but less than 8psi: Map6 behaves as an "additive" map adding the number of PSI entered at each RPM to the target. Similar to how maps 1-5 operate.
RPM1500 8psi or greater: Map6 acts as an "absolute target" map, commanding the PSI entered as the boost target at each RPM. For example 20psi would result in the JB4 attempting to target 20psi.
Known Issues:
1) Some customers report an intermittent momentary "low boost" condition that requires you to let off the gas and get back on the gas to restore full power. Various FUA test options are documented in the firmware updates to reduce the occurrence of this. *** EDIT3/17/21 fixed via updated SENT driver chips, email us if you need them! ***
Default BCM settings:
How to update firmware via JB4 Mobile:
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